Hi all,

I'm using the "domains" share for the VMs on a BTRFS drive (with COW enabled), with a template I've built as the baseline for most of my VMs (Server 2022 template, with a complete lab environment built on top of it).

As far as I can tell, most of the "domains" share storage is taken by the Server 2022 template VM, and the clones based on that VM are only taking up storage according to the differences they have from the original VM (please correct me if I'm wrong).

Is there a way to move the share from one BTRFS pool drive to another, while keeping the storage consumes only by the template and the differences, instead of every VM taking up full space on the target drive?

I want to replace my current (VNMe) VMs pool drive to a bigger one...

Thanks in advance

You can use cp --sparse=always

3 hours ago, JorgeB said:

You can use cp --sparse=always

Thank you, but what is the process to replace the cache pool (single drive) to a bigger drive?

Copy the files from the current cache drive to a temporary (btrfs-formatted) drive, with the cp in cli, then back to the replaced (bigger) cache drive?

If I understand correctly, using Mover for the process won't use the --sparse parameter?

1 hour ago, gshlomi said:

Thank you, but what is the process to replace the cache pool (single drive) to a bigger drive?

If it's btrfs you can add the new drive to create a mirror, then remove the old one, but do it with 7.1.2, there's a bug removing a pool device with 7.0.x